Handle edge case where on disposing media_kit player, wakelock state if enabled across app sessions is not respected

mobile/lib/services/wake_lock_service.dart

@@ -5,6 +5,7 @@ enum WakeLockFor {
   videoPlayback,
   fasterBackupsOniOSByKeepingScreenAwake,
   machineLearningSettingsScreen,
+  handlingMediaKitEdgeCase,
 }
 
 /// Use this class to enable/disable wakelock. This class makes sure that
@@ -34,7 +35,8 @@ class EnteWakeLockService {
     required bool enable,
     required WakeLockFor wakeLockFor,
   }) {
-    if (wakeLockFor == WakeLockFor.fasterBackupsOniOSByKeepingScreenAwake) {
+    if (wakeLockFor == WakeLockFor.fasterBackupsOniOSByKeepingScreenAwake ||
+        wakeLockFor == WakeLockFor.handlingMediaKitEdgeCase) {
       WakelockPlus.toggle(enable: enable);
       _prefs.setBool(kKeepAppAwakeAcrossSessions, enable);
     } else {

mobile/lib/ui/viewer/file/video_widget_media_kit_new.dart

@@ -16,6 +16,7 @@ import "package:photos/models/file/extensions/file_props.dart";
 import "package:photos/models/file/file.dart";
 import "package:photos/service_locator.dart";
 import "package:photos/services/files_service.dart";
+import "package:photos/services/wake_lock_service.dart";
 import "package:photos/theme/colors.dart";
 import "package:photos/ui/actions/file/file_actions.dart";
 import "package:photos/ui/common/loading_widget.dart";
@@ -161,6 +162,12 @@ class _VideoWidgetMediaKitNewState extends State<VideoWidgetMediaKitNew>
     WidgetsBinding.instance.removeObserver(this);
     player.dispose();
     _captionUpdatedSubscription.cancel();
+    if (EnteWakeLockService.instance.shouldKeepAppAwakeAcrossSessions()) {
+      EnteWakeLockService.instance.updateWakeLock(
+        enable: true,
+        wakeLockFor: WakeLockFor.handlingMediaKitEdgeCase,
+      );
+    }
     super.dispose();
   }